CN101800943A - Multicasting key negotiation method and system suitable for group calling system - Google Patents
Multicasting key negotiation method and system suitable for group calling system Download PDFInfo
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- CN101800943A CN101800943A CN201010136883A CN201010136883A CN101800943A CN 101800943 A CN101800943 A CN 101800943A CN 201010136883 A CN201010136883 A CN 201010136883A CN 201010136883 A CN201010136883 A CN 201010136883A CN 101800943 A CN101800943 A CN 101800943A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/189—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
- H04L63/065—Network architectures or network communication protocols for network security for supporting key management in a packet data network for group communications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/041—Key generation or derivation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/043—Key management, e.g. using generic bootstrapping architecture [GBA] using a trusted network node as an anchor
- H04W12/0431—Key distribution or pre-distribution; Key agreement
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
- H04W12/043—Key management, e.g. using generic bootstrapping architecture [GBA] using a trusted network node as an anchor
- H04W12/0433—Key management protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/10—Integrity
- H04W12/106—Packet or message integrity
Abstract
The invention relates to a multicasting key negotiation method and a system suitable for a group calling system. The multicasting key negotiation system suitable for the group calling system comprises a user terminal (UT) and a base station (BS), wherein the base station (BS) transmits a multicasting key announce packet to the user terminal (UT); and after receiving the multicasting key announce packet, the user terminal (UT) decrypts a service group key application list in the multicasting key announce packet to obtain the multicasting key of a service group, constructs a multicasting key acknowledgement packet and transmits the multicasting key acknowledgement packet to the base station (BS). The method and the system are suitable for SCDMA broadband access technology. The prior scheme of SCDMA does not describe the multicasting key negotiation method for the group calling system. The method and the system of the invention provide secure multicasting key negotiation and ensure effective progression of the group calling service carried out by utilizing multicasting.
Description
Technical field
The invention belongs to network safety filed, relate to a kind of multicast key agreement method and system of group Call system, relate in particular to a kind of multicast key agreement method and system of group Call system of suitable SCDMA broadband access technology.
Background technology
SCDMA (Synchronous Code Division Multiple Access) is a kind of wireless access wide band technology of S-CDMA, it has adopted the advanced technologies such as SWAP (Synchronous Wireless Access Protocol) air interface protocol of smart antenna, software radio and independent development, it is a brand-new system, a brand-new China has the third generation wireless communication technology standard of complete independent intellectual property right, can commence business in the mode of group calling.(UT, UserTerminal) and in the scheme of the air interface safety of base station (BS, Base Station) communication, the machinery of consultation to the multicast key of group Call system is not described at the user terminal of SCDMA technical standard.
Consider the group Call system characteristics of SCDMA broadband access technology, the use of the multicast key after the generation of the multicast key of service groups, renewal and group membership switch should possess following requirement: 1) base station BS does not write down the affiliated group message of each user terminal UT; 2) base station BS provides different service groups, and the user terminal UT of the same service groups of being served may be scattered under the different base station BSs; 3) owing to need possess switching capability, should generate the multicast key of service groups by base station BS.All the needing of group-calling service in the SCDMA network carries out by multicast mode, do not have the multicast key negotiation method and the system of safety can't guarantee that the group-calling service that utilizes multicast to carry out can carry out more effectively.
Summary of the invention
In order to solve the above-mentioned technical problem that exists in the background technology, the invention provides the multicast key agreement method and the system of the higher suitable group Call system of a kind of fail safe.
Technical solution of the present invention is: the present invention is a kind of multicast key agreement method of suitable group Call system, and its special character is: the multicast key agreement method of described suitable group Call system may further comprise the steps:
1) user terminal UT and base station BS are consulted singlecast key, and according to singlecast key derived information encryption key and completeness check key, and user terminal UT needs the service groups sign of registration to the base station BS registration;
2) multicast key of the service groups that need apply for to user terminal UT announcement UT of base station BS, make up the multicast key notification grouping and send to user terminal UT, this grouping comprises: random number, the application tabulation of service groups key and message integrity check value, wherein, service groups key application tabulation comprises the service groups sign that UT need apply for and the multicast key of service groups, and this service groups key application tabulation is to use the existence of the ciphertext form after the singlecast key derived information encryption keys in the step 1);
3) after user terminal UT receives the multicast key notification grouping that base station BS sends, deciphering service groups key application tabulation, obtain the multicast key of the service groups that UT need apply for, make up multicast key and confirm that grouping sends to base station BS, this grouping comprises: random number, service groups key response tabulation and message integrity check value, wherein, service groups key response tabulation comprises all service groups signs of finishing application, and this service groups key response tabulation is to use the existence of the ciphertext form after the singlecast key derived information encryption keys in the step 1);
4) base station BS can confirm that according to the multicast key affirmation grouping of receiving that user terminal UT sends the multicast key of UT service groups is set up successfully.
Above-mentioned steps 2) in,, then generates the multicast key of this service groups in network by base station BS if the multicast key of service groups is to be applied for the first time; If the multicast key of this service groups was applied in network, then base station BS is directly transmitted the multicast key that this service groups is applied for the first time.
Above-mentioned steps 4) also comprising 5 afterwards) base station BS is in upgrading the multicast key process of service groups, use the multicast key of old service groups that the multicast packet frame is encrypted transmission, all finish the multicast key negotiation of service groups as the UT that all has been associated with this BS after, the multicast key of just enabling the service groups of up-to-date announcement is used for the encryption transmission of multicast packet frame.
Above-mentioned steps 3) specific implementation is: after user terminal UT receives multicast key notification grouping, use the completeness check key authentication message integrity check value wherein that derives, judge whether it is correct, if incorrect then abandon this grouping; If it is correct, then by user terminal UT deciphering service groups key application tabulation, identify to confirm whether be the service groups that UT applied for according to service groups in the tabulation, if it is identical with the service groups that UT registers in step 1) in the group key tabulation in the service groups sign, then can obtain the multicast key of the service groups that UT need apply for, confirm grouping to base station BS feedback multicast key.
Above-mentioned steps 4) specific implementation is: base station BS receives that the multicast key that user terminal UT sends confirms that the concrete processing mode after the grouping is: after base station BS receives that multicast key that user terminal UT sends is confirmed grouping, use the completeness check key authentication message integrity check value wherein that derives, judge whether it is correct, if incorrect then abandon this grouping; If it is correct, then by base station BS deciphering service groups key response tabulation, identify to confirm whether be the service groups that UT applied for according to service groups in the tabulation, if identical with the service groups that UT registers in the group key tabulation, can confirm that then the multicast key of UT service groups is set up successfully in step 1) in the service groups sign.
Above-mentioned steps 2) in, also comprises in this multicast key notification grouping: interacting message mechanism sign, this message identifier, multicast key security association, base station BS sign, user terminal UT sign, singlecast key index.
Above-mentioned steps 3) in, this multicast key confirms also to comprise in the grouping interacting message mechanism sign, this message identifier, multicast key security association, base station BS sign, user terminal UT sign, singlecast key index.
A kind of multicast key negotiating system of suitable group Call system, its special character is: the multicast key negotiating system of described suitable group Call system comprises user terminal UT and base station BS; Described base station BS sends the multicast key notification grouping to user terminal UT; After described user terminal UT receives the multicast key notification grouping, the multicast key that obtains service groups is deciphered in the service groups key application tabulation in the multicast key notification grouping, made up multicast key and confirm that grouping sends to base station BS.
Advantage of the present invention is:
Especially the multicast key agreement method and the system that are fit to the group Call system of SCDMA broadband access technology, the machinery of consultation to the multicast key of group Call system is not described in the existing scheme of SCDMA, the invention provides safe multicast key negotiation method and system, guarantee that the group-calling service that utilizes multicast to carry out can carry out more effectively;
Description of drawings
Fig. 1 is the multicast key negotiations process framework schematic diagram of suitable group Call system provided by the present invention.
Embodiment
Referring to Fig. 1, the invention provides a kind of multicast key agreement method of suitable group Call system, this method may further comprise the steps:
1) user terminal UT and base station BS are consulted singlecast key TEK (the corresponding singlecast key index TEKID of each singlecast key TEK), and derived information encryption key and completeness check key, and by service log-on, user terminal UT informs own affiliated service groups sign GID to base station BS;
2) multicast key notification grouping: be sent to user terminal UT by base station BS; The multicast key of the service groups that base station BS need be applied for to user terminal UT announcement UT makes up the multicast key notification grouping; This grouping comprises: (service groups key application tabulation comprises the service groups sign GID that UT need apply for and the multicast key GEK of service groups for singlecast key index NONCE (base station BS generate assurance message freshness random number), service groups key application tabulation.If the multicast key of this service groups is to be applied for the first time, then generate the multicast key of this service groups by BS in network; If the multicast key of this service groups was applied in network, then BS directly transmits the multicast key that this service groups is applied for the first time, and this tabulation is to use the ciphertext form after the information encryption secret key encryption that the key of TEKID correspondence derives to exist) and message integrity check MIC value (integrity check value of the completeness check cipher key calculation message of the key derivation of use TEKID correspondence);
3) multicast key is confirmed grouping: UT is sent to base station BS by user terminal; After user terminal UT receives the multicast key notification grouping, the completeness check key authentication message integrity check MIC value wherein that derives by the key of singlecast key index TEKID correspondence, if it is incorrect then abandon this grouping, if it is correct, then by user terminal UT deciphering service groups key application tabulation, confirm whether be the service groups that user terminal UT is applied for according to service groups sign GID in the tabulation, if it is identical with the service groups that user terminal UT registers in step 1) in the group key application tabulation at service groups sign GID, then can obtain the multicast key GEK of the service groups that UT need apply for, feed back multicast key then and confirm grouping, comprise: singlecast key index NONCE (random number, with the multicast key announce packet), service groups key response tabulation (service groups key response tabulation comprises the service groups sign GID that UT need apply for, this tabulation is to use the ciphertext form after the information encryption secret key encryption that the key of singlecast key index TEKID correspondence derives to exist) and message integrity check MIC value (integrity check value of the completeness check cipher key calculation message of the key derivation of use singlecast key index TEKID correspondence);
4) after base station BS receives that multicast key that user terminal UT sends is confirmed grouping, use the completeness check key authentication message integrity check MIC value wherein of the key derivation of singlecast key index TEKID correspondence, judge whether it is correct, if incorrect then abandon this grouping; If it is correct, then by base station BS deciphering service groups key response tabulation, confirm whether be the service groups that user terminal UT is applied for according to service groups sign GID in the tabulation, if the sign of the service groups in the group key Response List is identical with the service groups that user terminal UT registers, can confirm that then the multicast key GEK of UT service groups sets up successfully in step 1).
5) base station BS is in the multicast key process of upgrading service groups, use the multicast key of old service groups that the multicast packet frame is encrypted transmission, all finish the multicast key negotiation of service groups as the user terminal UT that all has been associated with this base station BS after, the multicast key of just enabling the service groups of up-to-date announcement is used for the encryption transmission of multicast packet frame.
6) for the convenience of Project Realization, can also comprise in the multicast key notification grouping: interacting message mechanism sign FLAG, this message identifier PFLAG, multicast key security association MEKID, base station BS sign BSID, user terminal UT sign UTID, singlecast key index TEKID.
7) for the convenience of Project Realization, multicast key is confirmed can also comprise in the grouping: interacting message mechanism sign FLAG (with respective value in the multicast key announce packet), this message identifier PFLAG, multicast key security association MEKID (with respective value in the multicast key announce packet), base station BS sign BSID (with respective value in the multicast key announce packet), user terminal UT sign UTID (with respective value in the multicast key announce packet), singlecast key index TEKID (with respective value in the multicast key announce packet).
The present invention also provides a kind of multicast key negotiating system of suitable group Call system, and this system comprises user terminal UT and base station BS; Described base station BS sends the multicast key notification grouping to user terminal UT; After described user terminal UT receives the multicast key notification grouping, the multicast key that obtains service groups is deciphered in the service groups key application tabulation in the multicast key notification grouping, made up multicast service and confirm that grouping sends to base station BS.
Claims (8)
1. the multicast key agreement method of a suitable group Call system, it is characterized in that: the multicast key agreement method of described suitable group Call system may further comprise the steps:
1) user terminal UT and base station BS are consulted singlecast key, and according to singlecast key derived information encryption key and completeness check key, and user terminal UT needs the service groups sign of registration to the base station BS registration;
2) multicast key of the service groups that need apply for to user terminal UT announcement UT of base station BS, make up the multicast key notification grouping and send to user terminal UT, this grouping comprises: random number, the application tabulation of service groups key and message integrity check value, wherein, service groups key application tabulation comprises the service groups sign that UT need apply for and the multicast key of service groups, and this service groups key application tabulation is to use the existence of the ciphertext form after the singlecast key derived information encryption keys in the step 1);
3) after user terminal UT receives the multicast key notification grouping that base station BS sends, deciphering service groups key application tabulation, obtain the multicast key of the service groups that UT need apply for, make up multicast key and confirm that grouping sends to base station BS, this grouping comprises: random number, service groups key response tabulation and message integrity check value, wherein, service groups key response tabulation comprises all service groups signs of finishing application, and this service groups key response tabulation is to use the existence of the ciphertext form after the singlecast key derived information encryption keys in the step 1);
4) base station BS confirms that according to the multicast key affirmation grouping of receiving that user terminal UT sends the multicast key of UT service groups is set up successfully.
2. the multicast key agreement method of suitable group Call system according to claim 1 is characterized in that: described step 2), if the multicast key of service groups is to be applied for the first time, then generated the multicast key of this service groups by base station BS in network; If the multicast key of this service groups was applied in network, then base station BS is directly transmitted the multicast key that this service groups is applied for the first time.
3. the multicast key agreement method of suitable group Call system according to claim 2, it is characterized in that: also comprise 5 after the described step 4)) base station BS is in the multicast key process of upgrading service groups, use the multicast key of old service groups that the multicast packet frame is encrypted transmission, all finish the multicast key negotiation of service groups as the UT that all has been associated with this BS after, the multicast key of just enabling the service groups of up-to-date announcement is used for the encryption transmission of multicast packet frame.
4. according to the multicast key agreement method of claim 1 or 2 or 3 described suitable group Call systems, it is characterized in that: the specific implementation of described step 3) is: after user terminal UT receives the multicast key notification grouping, use the completeness check key authentication message integrity check value wherein that derives, judge whether it is correct, if incorrect then abandon this grouping; If it is correct, then by user terminal UT deciphering service groups key application tabulation, identify to confirm whether be the service groups that UT applied for according to service groups in the tabulation, if it is identical with the service groups that UT registers in step 1) in the group key tabulation in the service groups sign, then can obtain the multicast key of the service groups that UT need apply for, confirm grouping to base station BS feedback multicast key.
5. the multicast key agreement method of suitable group Call system according to claim 4, it is characterized in that: described step 4) specific implementation is: base station BS receives that the multicast key that user terminal UT sends confirms that the concrete processing mode after the grouping is: after base station BS receives that multicast key that user terminal UT sends is confirmed grouping, use the completeness check key authentication message integrity check value wherein that derives, judge whether it is correct, if incorrect then abandon this grouping; If it is correct, then by base station BS deciphering service groups key response tabulation, identify to confirm whether be the service groups that UT applied for according to service groups in the tabulation, if identical with the service groups that UT registers in the group key tabulation, can confirm that then the multicast key of UT service groups is set up successfully in step 1) in the service groups sign.
6. the multicast key agreement method of suitable group Call system according to claim 5, it is characterized in that: described step 2), also comprise in this multicast key notification grouping: interacting message mechanism sign, this message identifier, multicast key security association, base station BS sign, user terminal UT sign, singlecast key index.
7. the multicast key agreement method of suitable group Call system according to claim 6, it is characterized in that: in the described step 3), this multicast key confirms also to comprise in the grouping interacting message mechanism sign, this message identifier, multicast key security association, base station BS sign, user terminal UT sign, singlecast key index.
8. the multicast key negotiating system of a suitable group Call system, it is characterized in that: the multicast key negotiating system of described suitable group Call system comprises user terminal UT and base station BS; Described base station BS sends the multicast key notification grouping to user terminal UT; After described user terminal UT receives the multicast key notification grouping, the multicast key that obtains service groups is deciphered in the service groups key application tabulation in the multicast key notification grouping, made up multicast key and confirm that grouping sends to base station BS.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101368830A CN101800943B (en) | 2010-03-31 | 2010-03-31 | Multicasting key negotiation method and system suitable for group calling system |
| PCT/CN2010/072660 WO2011120249A1 (en) | 2010-03-31 | 2010-05-12 | Multicast key negotiation method suitable for group calling system and a system thereof |
| RU2012145805/08A RU2530331C2 (en) | 2010-03-31 | 2010-05-12 | Multicast key negotiation method suitable for group calling system and respective system |
| US13/637,375 US8787574B2 (en) | 2010-03-31 | 2010-05-12 | Multicast key negotiation method suitable for group calling system and a system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101368830A CN101800943B (en) | 2010-03-31 | 2010-03-31 | Multicasting key negotiation method and system suitable for group calling system |
Publications (2)
| Publication Number | Publication Date |
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| CN101800943A true CN101800943A (en) | 2010-08-11 |
| CN101800943B CN101800943B (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101368830A Expired - Fee Related CN101800943B (en) | 2010-03-31 | 2010-03-31 | Multicasting key negotiation method and system suitable for group calling system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8787574B2 (en) |
| CN (1) | CN101800943B (en) |
| RU (1) | RU2530331C2 (en) |
| WO (1) | WO2011120249A1 (en) |
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| CN101917272A (en) * | 2010-08-12 | 2010-12-15 | 西安西电捷通无线网络通信股份有限公司 | Secret communication method and system among neighboring user terminals |
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| CN106998537A (en) * | 2016-01-25 | 2017-08-01 | 展讯通信（上海）有限公司 | The information transferring method and device of group-calling service |
| WO2022036600A1 (en) * | 2020-08-19 | 2022-02-24 | Oppo广东移动通信有限公司 | Key update methods, apparatus and devices, and storage medium |
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| CN106998537A (en) * | 2016-01-25 | 2017-08-01 | 展讯通信（上海）有限公司 | The information transferring method and device of group-calling service |
| CN106998537B (en) * | 2016-01-25 | 2019-09-10 | 展讯通信（上海）有限公司 | The information transferring method and device of group-calling service |
| CN110536254A (en) * | 2016-01-25 | 2019-12-03 | 展讯通信（上海）有限公司 | Cell switching method and device, storage medium, base station |
| CN110536254B (en) * | 2016-01-25 | 2022-02-22 | 展讯通信（上海）有限公司 | Cell switching method and device, storage medium and base station |
| WO2022036600A1 (en) * | 2020-08-19 | 2022-02-24 | Oppo广东移动通信有限公司 | Key update methods, apparatus and devices, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011120249A1 (en) | 2011-10-06 |
| RU2530331C2 (en) | 2014-10-10 |
| US8787574B2 (en) | 2014-07-22 |
| CN101800943B (en) | 2012-03-07 |
| RU2012145805A (en) | 2014-05-10 |
| US20130016838A1 (en) | 2013-01-17 |
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